Results 221 to 230 of about 304,795 (244)

The regular COLUMN

Self & Society, 2004
My first contribution to the column-why did I volunteer? Because I've increasingly appreciated S&S over the past 2 to 3 years, seeing it growing in a way that I identify with, and wanting to be a part of that development. Because it's a rare chance to have my own voice in words, a minimal brief (write 400 words), the freedom and challenge to create ...
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How Regular are Regular Singularities?

2021
An abstract look at the work of Fuchs and Frobenius on the solutions of ordinary differential equations at regular singularites.
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Regular Categories and Regular Functors

Canadian Journal of Mathematics, 1974
Let be a category with nice factorization-properties. If a functor G: —> which has a left-adjoint behaves nice with respect to factorizations then it can be shown quite easily that G behaves well in many other respects, especially that it lifts nice properties from into .
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How regular is regular? An analysis of menstrual cycle regularity

Contraception, 2004
We performed a retrospective analysis to ascertain how accurately women who believe that they have regular menstrual cycles estimate the length of their actual cycles. Data were extracted from a chart review of subjects from three different studies of barrier contraceptives.
Leslie A. Meyn, Sharon Keverline, Mitchell D. Creinin   +2 more
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Regular Rings are Very Regular

Canadian Mathematical Bulletin, 1982
The following problem arose in a conversation with Abraham Zaks: “Suppose R is an associative ring with identity such that every finitely generated left ideal is generated by idempotents. Is R von-Neumann regular?” In the literature the “s” in “idempotents” is missing, and is replaced by “an idempotent”. The answer is, “Yes!”
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Spectral regularization and minEnt regularization

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
In this paper, we propose the spectral regularization based on the conventional (spatial) regularization and the Fourier analysis. The entropy regularization is further developed and its connection to MinEnt principle is investigated. The underlying geometrical, physical and biological interpretation of spectral and entropic regularization are ...
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Too much regularity may force too much uniqueness

, 2016
Time-dependent fractional-derivative problems D t α u + A u = f $D_t^\alpha u + Au = f$ are considered, where D t α $D_t^\alpha$ is a Caputo fractional derivative of order α ∈ (0, 1)∪(1, 2) and A is a classical elliptic operator, and appropriate boundary
M. Stynes
semanticscholar   +1 more source

Regular subpseudographs of regular pseudographs

Mathematical Notes of the Academy of Sciences of the USSR, 1988
It is easily seen that each \(r\)-regular graph has an \((r-1)\)-regular subgraph for \(1\leq r\leq 3\). The well-known Berge conjecture that each 4- regular graph has a 3-regular subgraph has been proved in author's paper [Math. Notes 36, 612-623 (1984; Zbl 0558.05051); translation from Mat. Zametki 36, No. 2, 239-259 (1984)].
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The regular COLUMN

Self & Society, 2003
Telling my story. chapter two‘Among my people, questions are often answered with stories. The first story almost always evokes another, which summons another, until the answer to the question has become several stories long. A sequence of tales is thought to offer broader and deeper insight than a single story alone.’
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Analytic Semigroups and Optimal Regularity in Parabolic Problems

, 2003
A. Lunardi
semanticscholar   +1 more source